Name of French sci-fi comic book? [Solved: Valérian]

I'm looking for the name of a specific comic book. I think that it was published around the late 1960's and created by two French authours. I'm quite certain that it was a science fiction series and starred a man and woman working for some space-travel agency of some sort. Other than that, I actually found it quite interesting! I know the details are sketchy, but I'd appreciate it anyone knows what I'm talking about, and then maybe I'll stop pestering everyone with non-Tintin related subjects...

Valérian, agent spatio-temporel (a.k.a. Valérian et Laureline, or simply Valérian) by Jean-Claude Mézières and Pierre Christin?
It has something to do with Tintin. When Mézières was young (12-13 years old), he sent his first comics page to Hergé who didn't discourage him, and gave him some advice.
You can find this page in Le monde d'Hergé by Benoît Peeters.

That's the name I'm looking for! Thanks chevet. You wouldn't also happen to know some of the titles by any chance?

Have a look here.
I didn't know any of the titles myself, I just search with Google and the words: "Valérian agent spatio-temporel". You can probably find other sites on this subject!!

Great, now I'll trying sticking to Tintinology before this site turns into Valerianist.org or something